Translucent concrete is also called transparent concrete because of its light-transmitting properties due to the presence of optical fibres.
start reading
Translucent Concrete
"Translucent concrete is composed of cement, sand, water and optical fibre (2 micrometres to 2 mm in size), meaning that optical fibres are used in place of coarse aggregates."
- It provides light pavement at night. - It increases the visibility in dark metro stations. - In furnishings for the decorative and aesthetic function.